Detonator.



Patented Jan. 9

anna,

GERALD ALFRED COCK, OF LONDON, ENGLAND, .ASSIGNOR TO ERNEST A. BIGELOWAND ERNEST A. BIGELOW', JR., BOTH OF NEW' YORK, N. Y.

DETONATOR.

Application filed March 10, 1916. Serial No. 83,223.

To r/U whom it' 'may con/fern.'

Be it known that I, GERALD ALFRED Coon, a subject ot' the King ot' GreatBritain, residing at London, England, have invented new and usefulIn'iprovements in Detonators, of which the following is a specification.

The object of my invention is to providea simple and safe apparatus forthe detonation of relatively insensitive high explosives used asbursting charges in high explosive shells, aero bombsand torpedo heads.

n the drawing forming a part of this speci lisation, l have illustratedthe preferred embodiment of my invention applied to any aero bomb. A

ln the drawing, Figure 1 is a sectional view or" a complete aero bombembodying my iniprovements; Fig. 2 is an enlarged sectional view of thepriming cylinder shown in Fig. l; and Fig. 3 is a plan or bottom view ofthe bomb, with priming cylinder in position.

Referring in detail to the drawing, 1 desigymites the shell or housingof the bomb.

This is preferably made in two parts, as shown, and Yforms a containerfor the eX- plosive charge. At its upper end it is provided with ahandle H. The priming cylinder 2, shown enlarged in Fig. 2, is disposedin the housing and is held rigidly in position at one end by a collar2a, and at the other end by a nut 3. By loosening the nut 3, thecylinder may readily be removed. The priming cylinder is made in threeparts, C1, C2, and C3, each provided with threaded connections, asshown, for assembling them into a unitary structure. The end member C isthreaded at its outer end to receive the nut 3, and at the other end isdrilled or provided with a central opening to receive one end of thefuse lhereinafter referred to. It is also threaded at its inner end toengage the member C2, which latter is provided with a central opening tohold the brass percussion cap C, The percussion cap C4 is loaded withfrom one-haiic to one gram of iulminate composition, and has apercussion cap or head. .is retaining washer C5 with an opening (lf toreceive a striker tits over the cap and is held in position by thespring C. The member C3 is a cylinder and contains the piston l), thespring C and the Washer (l5, and is provided with a shoulder S to limitthe outward movement of the piston.

Specification of Letters Patent.

Patented Jan. 9, 31917.

The piston is adapted to slide in the cylinder and is held in theposition shown in the drawing by the-spring C6. The piston is threadedat its lower portion to receive the head K. The square pointed striker4c is screwed into the piston as shown at 5 and is supported thereby,and its removal renders the apparatus safe against any ordinaryhandling. 1A spring-clip safety device 6 is provided, and when this isinterposed, as shown in the drawing between the head and the shoulder2?, the bomb may be carried with the striker in positionfor immediateuse with comparative safety.

7 designates a lead covered fuse from 4 mm. to G mm. in diameter, and ismade of .trinitrotoluol or similar insensitive high explosive. One endof this tuse extends through the opening 8 in the memberl C1,

and into the percussion cap C4, while the' body of the fuse is coiled asshown in the housing of the bomb, being embedded in and surrounded bythe explosive charge, the latter, however, not being shown in thedrawing.

In preparing the bomb for use, the percussion capCA1 is placed over thefreshly eut end of the fuse until the latter bears against the fulminatein the cap, The end of the cap is then firmly crimped over the fuse, andthe member C2 which has been unscrewed to facilitate this operation isthen assembled on the end of the member C1. The percussion cap is pushedsnugly into position, the cylinder C3 and its associated parts areassembled-and screwed into position on the end of the element C2, thestriker 4 being placed in position, or not, depending upon the situation and the likelihood of immediate/fuse.

lf the explosive to be used as the main charge is 100% blasting gelatin,the fuse is buried in the gelatin during lling, and where meltedexplosives such as T., N. T. are used, they may be cast to fit the bombwith grooves to receive the` fuse, which grooves may'be filled withground T. N. T.,

after the fuse has been placed in position.

lVhile l have described my improvements with particular reference to anaero bomb, it is obvious that they are adapted and can readily beapplied tohigh explosive shells ot' many kinds, to torpedo heads, andother high explosive devices. Also, While I have described only oneembodiment of my 1nvention, I am aware that modifications may be made bythose skilled in the art Without departing from the scope of my claims.`What I .claim as my invention is:

l. A bomb of the kind described comprising a housing, a priming cylinderlocated therein, a percussion cap disposed inseid vcylinder7 and adetonating fuse having one end disposed in said cap, and its bodyportioncoiled in the body of the bomb around the priming cylindersubstantially as described.

2. A bomb of the kind described comprising a housing, al primingcylinder located therein, a percussion cap disposed in said cylinder,and a detonating fuse having one end disposed in said cap, and its bodyportion coiled in spiral form in the body of the bomb, a striker mountedin the priming cylinder and carrying a head exposed at the lower end ofthe bomb.

A bomb of the kind described comprising a housing, a priming cylinderlocated therein, a percussion cap disposed in said cylinder, and adetonating fuse having one end disposed in said cap, and its bodyportion coiled in spiral form in the body of the bomb, a striker mountedin the primingcylinder and carrying a head exposed at the lower end ofVthe bomb, and a spring safetyclip adapted to hold the striker ininoperative position.

neuem f1. A bomb of 'the kind described comprising housing adapted toreceive acharge oiE explosive material, a priming cylinder lo catedtherein, a percussion cap disposed in said cylinder, a fuse ofinsensitive high explosime having one end disposed in said cap, andy itsbody portion coiled in spiral forni in the body of the bomb inconibination,with means for firing the cap and thereby igniting the fuseand explosive in the bomb substantially as described.

'posed in an opening in the first named end member and its body coiledin spiral form in said housing.

In testimony 'whereof l have signed this specification 1n the presenceof two subscribing witnesses.

GERALD ALFRED GUCE,

l'Vitnesses H. D. JAMESON, O. J. Voa'rn.

